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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.62 No.2
- 발행연도
- 2017.1
- 수록면
- 225 - 236 (12page)
이용수
초록· 키워드
오류제보하기
The purpose of this work is to predict ductile fracture of structural steel under extremely low cyclic loading experienced in earthquake. A cumulative damage model is proposed on the basis of an existing damage model originally aiming to predict fracture under monotonic loading. The cumulative damage model assumes that damage does not grow when stress triaxiality is below a threshold and fracture occurs when accumulated damage reach unit. The model was implemented in ABAQUS software. The cumulative damage model parameters for steel base metal, weld metal and heat affected zone were calibrated, respectively, through testing and finite element analyses of notched coupon specimens. The damage evolution law in the notched coupon specimens under different loads was compared. Finally, in order to examine the engineering applicability of the proposed model, the fracture performance of beam-column welded joints reported by previous researches was analyzed based on the cumulative damage model. The analysis results show that the cumulative damage model is able to successfully predict the cracking location, fracture process, the crack initiation life, and the total fatigue life of the joints.
목차
등록된 정보가 없습니다.
참고문헌 (39)
참고문헌 신청
Amiri, H. R. / 2013 / Finite element simulation of ultra low cycle fatigue cracking in steel structures / J. Constr. Steel Res 89:175~184
Bao, Y. / 2004 / On fracture locus in the equivalent strain and stress triaxiality space / Int. J. Mech. Sci 46(81):81~98
Bao, Y. / 2005 / On the cut-off value of negative triaxiality for fracture / Eng. Fract. Mech 72(7):1049~1069
Besson, J. / 2003 / An extension of the Green and Gurson models to kinematic hardening / Mech. Mater. 35(1-2):1~18
Besson, J. / 2001 / Modeling of crack growth in round bars and plane strain specimens / Int. J. Solid. Struct. 38(46-47):8259~8284
Bao, Y. / 2004 / On fracture locus in the equivalent strain and stress triaxiality space / Int. J. Mech. Sci 46(81):81~98
Bao, Y. / 2005 / On the cut-off value of negative triaxiality for fracture / Eng. Fract. Mech 72(7):1049~1069
Besson, J. / 2003 / An extension of the Green and Gurson models to kinematic hardening / Mech. Mater. 35(1-2):1~18
Besson, J. / 2001 / Modeling of crack growth in round bars and plane strain specimens / Int. J. Solid. Struct. 38(46-47):8259~8284
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